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reference designMP4026

Monolithic Power Systems MP4026

Primary-Side-Control,Offline LED Controller with Active PFC

Overview

TopologyFlyback Converter
Input voltage90-265 V
Output 140 V / 0.5 A
IC revision1.1

Description

The MP4026 is a primary-side-control, offline LED controller that achieves high-power factorand accurate LED current for isolated, singlepower-stage lighting applications in an FCTSOT package. It is the next generation of the successful MP4021A. The proprietary realcurrent-control method accurately controls LED current from primary-side information with goodline and load regulation. The primary-side-control eliminates the secondary-side feedback components and the opto-coupler to significantlysimplify LED-lighting-system design.The MP4026 integrates power-factor correction and works in boundary-conduction mode to reduce MOSFET switching losses.The MP4026’s multiple protection features greatly enhance system reliability and safety. These features include over-voltage protection,short-circuit protection, primary-side over-current protection, brown out protection, cycle-by-cycle current limiting, VCC under-voltage lockout, and auto-restart over-temperature protection.

Features

  • Real-Current Control without Secondary-Feedback Circuit
  • <2% Line/Load Regulation
  • High Power Factor (≥0.9) over Universal Input Voltage
  • Boundary Conduction Mode for Improved Efficiency
  • Brown-Out Protection
  • Over-Voltage Protection
  • Short-Circuit Protection
  • Over-Temperature Protection
  • Primary-Side Over-Current Protection
  • Cycle-by-Cycle Current Limit
  • Input UVLO
  • Available in FCTSOT-6

Typical applications

  • Residential Lighting
  • Industrial and Commercial Lighting

More information

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768772102
SPECWE-TI HV Radial Leaded Wire Wound Inductor (High Voltage), 1000 µH, 0.5 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI HV Radial Leaded Wire Wound Inductor (High Voltage)
Inductance1000 µH
Rated Current0.5 A
Saturation Current0.55 A
DC Resistance2.08 Ω
Self Resonant Frequency1.8 MHz
MountTHT 
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